Answer:
tendons
Explanation:
Skeletal muscles are attached to bones by tendons, and they produce all the movements of body parts in relation to each other. Unlike smooth muscle and cardiac muscle, skeletal muscle is under voluntary control.
Answer:The correct order is:
Ion channels - synaptic vesicle - neurotransmitter - end plate potential.
Explanation: A neuromuscular junction is the point where a motor neuron meets with a skeletal muscle fiber which it innervates.
It is the site where a chemical interaction or communication between a motor neuron and a muscle cell occurs. For transmission of impulses to occur between a neuron and a muscle cell, an action potential from the motor neuron travels along the axon of the neuron to the presynaptic terminal of the neuron where it activates voltage gated calcium ion channels which causes the influx of calcium ions into the intracellular space of the neuron. The calcium ions bind to the sensor proteins that are located on the synaptic vesicles and trigger the release of the neurotransmitter into the synaptic cleft. The neurotransmitter moves from the synaptic cleft and binds to its receptors on the postsynaptic membrane of the muscle cell. The binding of the neurotransmitter to its receptors creates end plate potential which causes the skeletal muscle fibers to depolarise.
The Continental Drift theory states that the 7 continents were all once one big piece. Pangea broke into several pieces by convergent and divergent boundaries. The continents almost fit together as an exact puzzle.
hope this helps !
To answer this question we need to remember quickly how the carbon cycle works, a part of the free carbon dioxide in the atmosphere is captured by plants through photosynthesis, other dissolves into water bodies, and some more remains in the atmosphere. This fixated carbon by plants passes to animals where can integrate into the soil or be released again into the atmosphere. The carbon that remains in the soul can form fossil fuels that are used by humans in the industry and released once more to the atmosphere. Therefore taking this into account we can say that that order is as follows:
Photosynthesis: Plants
Burning oil and coal: Factories
Respiration: Animals
Decomposers: Fossil fuels
